711374861 has 2 divisors, whose sum is σ = 711374862. Its totient is φ = 711374860.

The previous prime is 711374857. The next prime is 711374891. The reversal of 711374861 is 168473117.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 379041961 + 332332900 = 19469^2 + 18230^2 .

It is an emirp because it is prime and its reverse (168473117) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 711374861 - 2² = 711374857 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (711374821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355687430 + 355687431.

It is an arithmetic number, because the mean of its divisors is an integer number (355687431).

Almost surely, 2^711374861 is an apocalyptic number.

It is an amenable number.

711374861 is a deficient number, since it is larger than the sum of its proper divisors (1).

711374861 is an equidigital number, since it uses as much as digits as its factorization.

711374861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 38.

The square root of 711374861 is about 26671.6115186166. The cubic root of 711374861 is about 892.6876049273.

The spelling of 711374861 in words is "seven hundred eleven million, three hundred seventy-four thousand, eight hundred sixty-one".